Patents by Inventor Ghirmay Seyoum
Ghirmay Seyoum has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20230391057Abstract: Coextruded acrylic foils made from impact-modified polyalkyl (meth)acrylates and laser engravable labels containing these foils. The coextruded acrylic foils are designed for labelling by a laser and contain a contrast layer having at least one inorganic filler and an engraving layer arranged on the contrast layer and having at least one colourant.Type: ApplicationFiled: October 21, 2021Publication date: December 7, 2023Applicant: Roehm GmbHInventors: Kim STRUWE, Markus PARUSEL, Ghirmay SEYOUM, Claude GUÉNANTEN, Helmut HAERING
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Publication number: 20230106433Abstract: An acrylic multilayer foil includes a layer in which silica particles are uniformly distributed in an acrylic polymer matrix and at least one further layer. Due to adhesive promoting properties of the layer containing silica particles, the multilayer foil can be easily coated or laminated onto a substrate. The foil has a high weathering resistance and excellent mechanical properties. Therefore, the multilayer foil is highly suitable for surface-protection of materials such as polyvinyl chloride (PVC) and for use in high-pressure laminates (HPLs).Type: ApplicationFiled: February 18, 2021Publication date: April 6, 2023Applicant: Roehm GmbHInventors: Ghirmay SEYOUM, Michael ENDERS, Herbert GROOTHUES, Claude GUENANTEN, Kim STRUWE, Helmut HAERING, Girolamo MUSCI
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Publication number: 20230100304Abstract: An acrylic multilayer foil includes a layer A in which silica particles are uniformly distributed in an acrylic polymer matrix and a coating layer D. Due to adhesive promoting properties of the layer A containing silica particles, the coating layer D can be advantageously applied onto the layer A. The foil has a high weathering resistance and excellent mechanical properties. Therefore, the foil is highly suitable for surface-protection of materials such as polyvinyl chloride (PVC) and for use in high-pressure laminates (HPLs).Type: ApplicationFiled: February 18, 2021Publication date: March 30, 2023Applicant: Roehm GmbHInventors: Ghirmay SEYOUM, Michael ENDERS, Herbert GROOTHUES, Claude GUENANTEN, Kim STRUWE, Helmut HAERING, Girolamo MUSCI
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Patent number: 11285708Abstract: Heat resistant brittle films can be made from impact-modified poly(meth)acrylimide, and forgery prevention labels can contain the heat resistant brittle films. The films can be advantageously prepared by extrusion and, depending on the desired purpose, can be designed to be transparent, translucent, or entirely non-transparent, e.g., white. Ideally, the brittle films and the forgery prevention labels containing the brittle films have no intended break points such as slits, perforation, etc.Type: GrantFiled: February 7, 2020Date of Patent: March 29, 2022Assignees: Röhm GmbH, Roehm America LLCInventors: Ghirmay Seyoum, Markus Parusel, Kim Struwe, Anderson Costa, Claude Guénanten, Helmut Häring
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Publication number: 20220040963Abstract: Heat resistant brittle films can be made from impact-modified poly(meth)acrylimide, and forgery prevention labels can contain the heat resistant brittle films. The films can be advantageously prepared by extrusion and, depending on the desired purpose, can be designed to be transparent, translucent, or entirely non-transparent, e.g., white. Ideally, the brittle films and the forgery prevention labels containing the brittle films have no intended break points such as slits, perforation, etc.Type: ApplicationFiled: February 7, 2020Publication date: February 10, 2022Applicants: Röhm GmbH, Roehm America LLCInventors: Ghirmay Seyoum, Markus Parusel, Kim Struwe, Anderson Costa, Claude Guénanten, Helmut Häring
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Publication number: 20220024102Abstract: A transparent weathering resistant foil for protection of various substrates against solar radiation contains at least two layers A and B, wherein the spectral transmittance of the layer A at any wavelength ?A is not more than 10%; wherein 270 nm??A?360 nm; and the spectral transmittance of the layer B at any wavelength ?B is not more than 10%; wherein 270 nm??B?370 nm. The foil can also contain at least two layers A and B; wherein the spectral transmittance of the layer A at any wavelength ?A is not more than 20%; wherein 270 nm??A?310 nm; and the spectral transmittance of the layer B at any wavelength ?B is not more than 10%; wherein 270 nm??B?370 nm.Type: ApplicationFiled: November 13, 2019Publication date: January 27, 2022Applicant: Röhm GmbHInventors: Claude Guénanten, Ghirmay Seyoum, Michael Enders, Herbert Groothues, Kim Struwe
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Publication number: 20210032502Abstract: Brittle acrylic films are made from impact-modified polyalkyl (meth)acrylate and are useful in forgery prevention labels containing the same. The films can be advantageously prepared by extrusion and, depending on the desired purpose, can be designed to be translucent or entirely non-transparent e.g. white. Ideally, the brittle acrylic films and the forgery prevention labels have no intended break points such as slits, perforation etc.Type: ApplicationFiled: August 22, 2018Publication date: February 4, 2021Applicant: Röhm GmbHInventors: Ghirmay SEYOUM, Markus Parusel, Detlef Birth, Jürgen Pachmann, Günther Dickhaut, Girolamo Musci, Claude Guénanten, Haroldo Rodrigues
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Patent number: 10629098Abstract: The present invention relates to peelproof security films made from a poly(meth)acrylate, more particularly from a polymethyl methacrylate, which comprises at most 10 wt % of or no impact modifiers. These films are highly transparent, have good printability qualities, and can be applied without intended break points. The peelproof security films can therefore find use in particular in documents, such as passports, for example, in security labels, such as road tax badges, for example, or for product theft prevention, or as price tags. These security labels are further distinguished by good weathering stability and in particular by especially good UV stability. The present invention relates more particularly to the use of these security labels, which have a thickness of not more than 2 mm, comprise at least 80 wt % of polymethyl methacrylate and contain no impact modification particles.Type: GrantFiled: March 23, 2016Date of Patent: April 21, 2020Assignee: Roehm GmbHInventors: Ghirmay Seyoum, Haroldo Rodrigues, Guenther Dickhaut, Juergen Pachmann, Detlef Birth
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Patent number: 10611130Abstract: An extruded matt foil has at least one layer in which glass beads are uniformly distributed in a polymer matrix with at least one fluoropolymer and at least one further layer. The matt foil has a particularly high UV-resistance, a high weathering resistance and excellent mechanical properties. Therefore, the foil is highly suitable for surface-protection of materials such as polyvinyl chloride (PVC) and for use in high-pressure laminates (HPLs).Type: GrantFiled: December 5, 2017Date of Patent: April 7, 2020Assignee: Röhm GmbHInventors: Claude Guénanten, Helmut Háring, Detlef Birth, Max Conrad, Eric Reinheimer, Günther Dickhaut, Ghirmay Seyoum, Wangelis Karampougioukis, Girolamo Musci
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Publication number: 20190358940Abstract: An extruded matt foil has at least one layer in which glass beads are uniformly distributed in a polymer matrix with at least one fluoropolymer and at least one further layer. The matt foil has a particularly high UV-resistance, a high weathering resistance and excellent mechanical properties. Therefore, the foil is highly suitable for surface-protection of materials such as polyvinyl chloride (PVC) and for use in high-pressure laminates (HPLs).Type: ApplicationFiled: December 5, 2017Publication date: November 28, 2019Applicant: Evonik Röhm GmbHInventors: Claude Guénanten, Helmut Häring, Detlef Birth, Max Conrad, Eric Reinheimer, Günther Dickhaut, Ghirmay Seyoum, Wangelis Karampougioukis, Girolamo Musci
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Publication number: 20190083977Abstract: The present invention is in the field of medical diagnostics and microfluidics and primarily relates to a microfluidic device for the analysis of biological samples. The microfluidic device of the present invention comprises at least one microchannel, the inner surface of which is at least partially coated with a hydrophilic coating. This hydrophilic coating is located on top of the intermediate layer which, in turn, is located between the material of the inner surface of the microchannel and the hydrophilic coating.Type: ApplicationFiled: March 9, 2017Publication date: March 21, 2019Applicant: Evonik Roehm GmbHInventors: Ghirmay SEYOUM, Anderea FRUTH, Michael ENDERS
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Publication number: 20180037776Abstract: The present invention relates to peelproof security films made from a poly(meth)acrylate, more particularly from a polymethyl methacrylate, which comprises at most 10 wt % of or no impact modifiers. These films are highly transparent, have good printability qualities, and can be applied without intended break points. The peelproof security films can therefore find use in particular in documents, such as passports, for example, in security labels, such as road tax badges, for example, or for product theft prevention, or as price tags. These security labels are further distinguished by good weathering stability and in particular by especially good UV stability. The present invention relates more particularly to the use of these security labels, which have a thickness of not more than 2 mm, comprise at least 80 wt % of polymethyl methacrylate and contain no impact modification particles.Type: ApplicationFiled: March 23, 2016Publication date: February 8, 2018Applicant: Evonik Roehm GmbHInventors: Ghirmay SEYOUM, Haroldo RODRIGUES, Guenther DICKHAUT, Juergen PACHMANN, Detlef BIRTH
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Patent number: 9630387Abstract: The present invention relates to a method for the continuous inline production of coated polymeric substrates or laminates and also to an apparatus for implementing this method.Type: GrantFiled: June 15, 2012Date of Patent: April 25, 2017Assignee: Evonik Roehm GmbHInventors: Waldemar Kanzler, Thomas Hasskerl, Ghirmay Seyoum, Patrick Kliem, Werner Krebs, Dieter Foerster, Manfred Dannehl
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Patent number: 9410043Abstract: A reactive mixture for coating mouldings by means of reaction injection moulding, containing at least 40% by weight of (meth)acrylates having at least two double bonds. The reactive mixture contains at least one photoinitiator and at least one thermal initiator. The present invention furthermore describes a coated moulding including a moulding which is obtainable by injection moulding processes and includes at least one polymer selected from polymethyl methacrylate, polymethylmethacrylimide, styrene-acrylonitrile copolymer, styrene-maleic acid copolymer and polymethyl methacrylate copolymers, and a coating which is obtainable by polymerization of (meth)acrylates having at least two double bonds. The coating has an adhesive strength rating of not more than 1 according to the cross hatch test and a decrease in gloss at 20° after a scratch resistance test according to ASTM 1044 (12/05) (applied weight 500 g, number of cycles=100) of not more than 10%.Type: GrantFiled: July 11, 2012Date of Patent: August 9, 2016Assignee: Evonik Roehm GmbHInventors: Klaus Schultes, Thorsten Goldacker, Klaus Koralewski, Werner Höβ, Ghirmay Seyoum, Elevtherios Gross, Erwin Felger
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Patent number: 9062211Abstract: A reactive mixture for coating moldings by reaction injection molding includes at least 40% by weight of (meth)acrylates having at least two double bonds. The reactive mixture also includes at least one photoinitiator and at least one thermal initiator. Furthermore, a coated molding includes a molding obtainable by injection molding processes. The molding includes polymethyl methacrylate, polymethylmethacrylimide, styrene-acrylonitrile copolymer, styrene-maleic acid copolymer, polymethyl methacrylate copolymer, or a combination thereof. A coating is obtainable by polymerization of (meth)acrylates having at least two double bonds, the coating having an adhesive strength rating of not more than 1 according to the cross hatch test and a decrease in gloss at 20° after a scratch resistance test according to ASTM 1044 (12/05) (applied weight 500 g, number of cycles=100) of not more than 10%.Type: GrantFiled: July 11, 2012Date of Patent: June 23, 2015Assignee: EVONIK ROEHM GmbHInventors: Klaus Schultes, Thorsten Goldacker, Klaus Koralewski, Werner Hoess, Ghirmay Seyoum, Elevtherios Gross, Erwin Felger
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Publication number: 20140106148Abstract: The present invention relates to a method for the continuous inline production of coated polymeric substrates or laminates and also to an apparatus for implementing this method.Type: ApplicationFiled: June 15, 2012Publication date: April 17, 2014Applicant: Evonik Roehm GmbHInventors: Waldemar Kanzler, Thomas Hasskerl, Ghirmay Seyoum, Patrick Kliem, Werner Krebs, Dieter Foerster, Manfred Dannehl
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Publication number: 20130059139Abstract: The invention relates to the production of a transparent, weather-resistant barrier film by lamination, extrusion lamination (adhesive lamination, melt lamination or hotmelt lamination) or extrusion coating. The film can also contain a scratch-resistant coating. For this purpose, two or more transparent film composites, which consist in each case of two externally disposed polyolefin or polyester layers which are in each case inorganically coated and glued to the inorganic layer on the inside, are connected to each other. Said composite is laminated with a weather-resistant, transparent film (e.g. PMMA or PMMA polyolefin coextrudate or PMMA polyester coextrudate). The inorganic oxide layers have the property of a high optical transparency while having at the same time a good barrier effect against water vapour and oxygen while the PMMA layer exhibits weather resistance stability.Type: ApplicationFiled: May 31, 2011Publication date: March 7, 2013Applicant: Evonik Roehm GmbHInventors: Jochen Ackermann, Claudius Neumann, Ghirmay Seyoum, Florian Schwager
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Publication number: 20130001825Abstract: A reactive mixture for coating mouldings by means of reaction injection moulding, containing at least 40% by weight of (meth)acrylates having at least two double bonds. The reactive mixture contains at least one photoinitiator and at least one thermal initiator. The present invention furthermore describes a coated moulding including a moulding which is obtainable by injection moulding processes and includes at least one polymer selected from polymethyl methacrylate, polymethylmethacrylimide, styrene-acrylonitrile copolymer, styrene-maleic acid copolymer and polymethyl methacrylate copolymers, and a coating which is obtainable by polymerization of (meth)acrylates having at least two double bonds. The coating has an adhesive strength rating of not more than 1 according to the cross hatch test and a decrease in gloss at 20° after a scratch resistance test according to ASTM 1044 (12/05) (applied weight 500 g, number of cycles=100) of not more than 10%.Type: ApplicationFiled: July 11, 2012Publication date: January 3, 2013Applicant: Evonik Roehm GmbHInventors: Klaus Schultes, Thorsten Goldacker, Klaus Koralewski, Werner Höss, Ghirmay Seyoum, Elevtherios Gross, Erwin Felger
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Publication number: 20120296004Abstract: The invention relates to an injection moulding machine containing a reactive mixture including at least 40% by weight of (meth)acrylates having at least two double bonds, at least one photoinitiator, and at least one thermal initiator.Type: ApplicationFiled: July 11, 2012Publication date: November 22, 2012Applicant: Evonik Roehm GmbHInventors: Klaus SCHULTES, Thorsten Goldacker, Klaus Koralewski, Werner Höß, Ghirmay Seyoum, Elevtherios Gross, Erwin Felger
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Publication number: 20120288706Abstract: A reactive mixture for coating moldings by reaction injection molding includes at least 40% by weight of (meth)acrylates having at least two double bonds. The reactive mixture also includes at least one photoinitiator and at least one thermal initiator. Furthermore, a coated molding includes a molding obtainable by injection molding processes. The molding includes polymethyl methacrylate, polymethylmethacrylimide, styrene-acrylonitrile copolymer, styrene-maleic acid copolymer, polymethyl methacrylate copolymer, or a combination thereof. A coating is obtainable by polymerization of (meth)acrylates having at least two double bonds, the coating having an adhesive strength rating of not more than 1 according to the cross hatch test and a decrease in gloss at 20° after a scratch resistance test according to ASTM 1044 (12/05) (applied weight 500 g, number of cycles=100) of not more than 10%.Type: ApplicationFiled: July 11, 2012Publication date: November 15, 2012Applicant: Evonik Roehm GmbHInventors: Klaus SCHULTES, Thorsten Goldacker, Klaus Koralewski, Werner Höß, Ghirmay Seyoum, Elevtherios Gross, Erwin Felger